118 lines
3.5 KiB
Go
118 lines
3.5 KiB
Go
package gitpb
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// functions to import and export the protobuf
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// data to and from config files
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import (
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"errors"
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"os"
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"path/filepath"
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"go.wit.com/log"
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)
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// write to ~/.config/forge/ unless ENV{FORGE_GOSRC} is set
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func (all *Repos) ConfigSave() error {
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if os.Getenv("FORGE_GOSRC") == "" {
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homeDir, _ := os.UserHomeDir()
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fullpath := filepath.Join(homeDir, ".config/forge")
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os.Setenv("FORGE_GOSRC", fullpath)
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}
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if all == nil {
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log.Warn("gitpb all == nil")
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return errors.New("gitpb.ConfigSave() all == nil")
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}
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data, err := all.Marshal()
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if err != nil {
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log.Info("gitpb proto.Marshal() failed len", len(data), err)
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return err
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}
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log.Info("gitpb.ConfigSave() repos.Marshal() worked len", len(data))
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configWrite("repos.pb", data)
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return nil
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}
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// load the ~/.config/forge/ files
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func (all *Repos) ConfigLoad() error {
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if os.Getenv("FORGE_GOSRC") == "" {
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homeDir, _ := os.UserHomeDir()
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fullpath := filepath.Join(homeDir, ".config/forge")
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os.Setenv("FORGE_GOSRC", fullpath)
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}
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var data []byte
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var err error
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cfgname := filepath.Join(os.Getenv("FORGE_GOSRC"), "repos.pb")
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if data, err = loadFile(cfgname); err != nil {
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// something went wrong loading the file
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return err
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}
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if data != nil {
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// this means the forge.pb file exists and was read
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if len(data) == 0 {
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// todo: error out if the file is empty?
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// try forge.text & forge.json?
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log.Warn("gitpb.ConfigLoad() repos.pb is empty")
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return errors.New("gitpb.ConfigLoad() repos.pb is empty")
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}
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if all.Repos == nil {
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// log.Warn("gitpb.ConfigLoad() all.Repos == nil")
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} else {
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log.Warn("gitpb.ConfigLoad() error. should be zero. all.Repos.Len() =", all.Len())
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}
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if err = all.Unmarshal(data); err != nil {
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log.Warn("gitpb.ConfigLoad() failed", err)
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if all.Repos == nil {
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log.Warn("gitpb.ConfigLoad() all.Repos == nil")
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} else {
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log.Warn("gitpb.ConfigLoad() all.Repos.Len()", all.Len())
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log.Warn("gitpb.ConfigLoad() trying to resave the file")
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all.ConfigSave()
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}
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return err
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}
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log.Info("gitpb.Init() ", len(all.Repos), "repos in", cfgname)
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return nil
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}
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return nil
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}
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func loadFile(fullname string) ([]byte, error) {
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data, err := os.ReadFile(fullname)
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if errors.Is(err, os.ErrNotExist) {
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// if file does not exist, just return nil. this
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// will cause ConfigLoad() to try the next config file like "forge.text"
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// because the user might want to edit the .config by hand
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return nil, nil
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}
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if err != nil {
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// log.Info("open config file :", err)
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return nil, err
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}
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return data, nil
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}
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func configWrite(filename string, data []byte) error {
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fullname := filepath.Join(os.Getenv("FORGE_GOSRC"), filename)
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cfgfile, err := os.OpenFile(fullname, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
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defer cfgfile.Close()
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if err != nil {
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log.Warn("open config file :", err)
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return err
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}
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if filename == "forge.text" {
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// add header
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cfgfile.Write([]byte("# this file is automatically re-generated from forge.pb, however,\n"))
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cfgfile.Write([]byte("# if you want to edit it by hand, you can:\n"))
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cfgfile.Write([]byte("# stop forge; remove forge.pb; edit forge.text; start forge\n"))
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cfgfile.Write([]byte("# this will cause the default behavior to fallback to parsing this file for the config\n"))
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cfgfile.Write([]byte("\n"))
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cfgfile.Write([]byte("# this file is intended to be used to customize settings on what\n"))
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cfgfile.Write([]byte("# git repos you have write access to. That is, where you can run 'git push'\n"))
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}
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cfgfile.Write(data)
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return nil
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}
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